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Tanker accident
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Hybrid car
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Wind Wizard
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Lighting (straight tube fluorescent lamp)
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Gas main plug
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Radioactive waste
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A person who closes the gas main valve
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Storage battery
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Small hydropower
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Hydrogen vehicle that discharges water
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Electricity bill
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(power liberalization) characters
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Lighting (incandescent light bulb)
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Outlet (unplugged plug-plugged plug) (power saving)
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Sun and solar panel
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Electric car
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Rare metal
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Kerosene is being transferred to the stove tank
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Outdoor water heater
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Broken cable (USB)
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People who choose an electric power company
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Wind turbine
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Household gas cylinder
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Solar panel
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Various batteries (set)
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Oil tanker (front)
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Series circuit and parallel circuit
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Bamboo charcoal
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Solar panel fall accident
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Male adjusting the temperature of the air conditioner (power saving)